Abstract
Apomucins play important biological roles in cell–cell and cell–extracellular matrix interactions, in cell signaling, and in biological properties of cancer cells. Their specific pattern of expression during the different steps of tumor progression toward adenocarcinoma suggests that they play significant roles in tumorigenesis. The family of secreted mucins, gel-forming components of viscoelastic mucus gels protecting the epithelia, includes mucins MUC2 and MUC6. Their principle function is to contribute in mucus formation by forming a tridimensional network via oligomerization domains to protect underlying epithelia against diverse injuries. The current study was investigated the expression of MUC2 and MUC6 in patients with gastric carcinoma. MUC2 and MUC6 expressions were detected immunohistochemically in gastric cancer biopsies using specific monoclonal antibodies. The results showed that in our gastric carcinoma cases, MUC2 expression was detected in 78.6% of cases. MUC2 expression is increased from well differentiated to moderately differentiated to poorly differentiated gastric adenocarcinoma. On the other hand, MUC6 was detected in 32% of cases. The expression of MUC2 is increasing, which is accompanied by an altered expression of MUC6 in gastric cancer. Therefore, it is concluded that the expression pattern of secreted mucins including MUC2 and MUC6 is altered apparently in gastric carcinoma.
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Khattab, AZ.M., Nasif, W.A. & Lotfy, M. MUC2 and MUC6 apomucins expression in human gastric neoplasm: an immunohistochemical analysis. Med Oncol 28 (Suppl 1), 207–213 (2011). https://doi.org/10.1007/s12032-010-9699-5
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DOI: https://doi.org/10.1007/s12032-010-9699-5